30 November 2021, Webinar – Inspection of ventilation systems in new regulations in European countries

In the context of energy use reduction, low energy buildings are becoming more widespread. This kind of construction requires a good envelope airtightness to prevent uncontrolled leakages of conditioned air leading to energy losses. As a result, more and more ventilation systems are installed to ensure a sufficient air change rate, to guarantee good indoor air quality and building durability while controlling energy losses.

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23 November 2021, Webinar – Emerging smart ventilation strategies for energy efficient IAQ management

In this webinar, we addressed the opportunities offered by smart ventilation strategies, which include a wide range of systems depending on the type of sensing parameters (CO2, humidity, occupancy, etc.), the type of sensing combinations, the type of installation (centralized/decentralized), the types of control algorithms, etc. We will also quantify their potential from and energy and IAQ point of view based on existing and newly developed assessment framework in the annex.

English

12 October 2021, Webinar – Smart materials for energy efficient IAQ management

In this webinar, we addressed the opportunities to use novel materials (from advanced functional nano-materials to bio-based building materials) as building components to actively/passively manage the IAQ, for example, through active paint, wallboards, and textiles coated with advanced sorbents or catalysts and quantify their potential, based on the assessment framework developed in the IEA EBC Annex 86 “Energy Efficient Indoor Air Quality Management in Residential Buildings”.

English

19 January 2021, Webinar – Building airtightness improvements of the building stock- Analysis of European databases

Air infiltration in buildings has multiple consequences on energy use and indoor environmental quality. Therefore, in the last 10 years many countries have introduced requirements for building airtightness in their EP-regulation. Those requirements often prescribe that a test is performed by a qualified tester and that every test performed is recorded in a database.  Hundreds of thousands of data are now available in Europe.

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9 December 2020, Webinar – Resilient Ventilative Cooling in practice

The current development in building energy efficiency towards nZEB buildings represents a number of new challenges to design and construction. One of these major challenges is the increased need for cooling in these highly insulated and airtight buildings, which is not only present in the summer period but also in the shoulder seasons and in offices even in midwinter. Resilient ventilative cooling can be an energy efficient solution to address this cooling challenge in buildings.

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30 November 2020, Webinar – Better Quantifying and Locating Building Leakages

Air infiltration in buildings has multiple consequences on energy use and indoor environmental quality which depend on the location and distribution of leakages. Among others, pollutant infiltration and air draft are highly affected by leakage distribution. In current practice, leakage detection is frequently performed together with an airtightness test. Leakage detection methods allow to identify the locations of the leakages, but in most cases do not allow to quantify the amount of leakage corresponding to each identified leakage.

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21 February 2020, Webinar – Durability of building airtightness: Assessment through laboratory testing

Mandatory or voluntary building airtightness testing has come gradually into force in many European countries mostly because of the increasing weight of building leakage energy impact on the overall energy performance of low-energy buildings. Therefore, airtightness levels of new buildings have significantly improved in the last decade, but a lot of questions remain regarding the durability of airtightness products.

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8 October 2013, Webinar – Building Airtightness Solutions: System approach and characterisation of air barrier and moisture management systems

While building airtightness is a key concern in Nearly Zero-Energy Buildings in most European climates, there exists already a wide range of commercially-available products specifically designed to minimise leakage in building envelopes. The objective of this webinar was to give information on the performance and properties of these products based on research including laboratory and field tests. The speakers also provided information on standards already published and under development on this subject.

English

4 June 2013, Webinar – Building Airtightness Solutions: Recent Research and Characterisation of Sealants and Tapes

While building airtightness is a key concern in Nearly Zero-Energy Buildings in most European climates, there exists already a wide range of commercially-available products specifically designed to minimize leakage in building envelopes. The objective of this webinar was to give information on the performance and properties of these products based on research including laboratory and field tests. The speakers also provided information on standards already published and under development on this subject.

English

9 November 2021, Webinar – Building Energy Efficiency and Indoor Air Quality – Building Energy Codes, Data Utilization for Improving Energy Efficiency, and Air Cleaning

IEA Energy in Buildings and Communities (EBC) research projects are examining building energy codes, exploring data utilization for improving energy efficiency, and investigating air cleaning technologies.

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